It seems to be the "luck of the draw", Beth
As you say, some peoples' applications are "done and dusted" in a matter of a few weeks ... while others find themselves waiting an awful lot longer. Indeed, you're the third person who's posted here in so many days wondering why
theirs should be taking so long. Much, I suppose, depends on the ECO assigned to individual applicants ... and the size of caseloads allocated. Never fear, though,
your WILL come ... although
unexplained delays can be extremely stressful. Meanwhile
... keep your spirits up and
try to relax.
It won't, unfortunately, arrive any quicker by fretting.